Indian police have filed rape and murder charges against five men accused in the gang rape of a woman on a New Delhi bus.

Police say they plan to push for the death penalty in the case.

A sixth suspect is believed to be a juvenile and is expected to be tried in juvenile court.

The five were charged today with raping the 23-year-old woman for hours and beating her companion as the bus drove through the capital.

The woman died on Saturday in a hospital in Singapore from massive internal injuries.

The case has sparked outrage and protests across the country demanding greater protection for women.

Prosecutor Rajiv Mohan filed a case of rape, tampering with evidence, kidnapping, murder and other charges against the men in a new fast-track court in south Delhi inaugurated only the day before to deal specifically with crimes against women.

Mr Mohan asked for a closed trial and a hearing was set for Saturday.

The men charged are Ram Singh, 33, the bus driver; his brother Mukesh Singh, 26, who cleans buses for the same company; Pavan Gupta, 19, a fruit vendor; Akshay Singh, 24, a bus washer; and Vinay Sharma, 20, a fitness trainer.

A sixth suspect was listed as 17 and was expected to be tried in a juvenile court, where the maximum sentence would be three years in a reform facility.

The December 16 attack on the woman, has sparked demands for tough new rape laws, better police protection for women and a sustained campaign to change society's views about women.